高渗透砂岩油藏注水时机实验研究

doi:10.7623/syxb200701015

石油学报 ›› 2007, Vol. 28 ›› Issue (1): 78-82.DOI: 10.7623/syxb200701015

高渗透砂岩油藏注水时机实验研究

李波^1,2, 李廷礼², 张迎春²

1. 中国石油大学石油天然气工程学院北京 102249;
2. 中国海洋石油总公司天津分公司天津 300452

收稿日期:2006-02-28 修回日期:2006-06-15 出版日期:2007-01-25 发布日期:2010-05-21
作者简介:李波,女,1964年6月生,1985年毕业于大庆石油学院,现为中国海洋石油总公司天津分公司技术部高级工程师,主要从事油气田开发研究工作.E-mail:Libo2@cnooc.com.cn
基金资助:
中国海洋石油总公司重点科技攻关项目(040316-2)"绥中36-1油田提高开发效果技术研究"部分研究成果.

Experiment research of water-flooding time in high-permeability sandstone reservoirs

Li Bo^1,2, Li Tingli², Zhang Yingchun²

1. College of Petroleum Engineering, China University of Petroleum, Beijing 102249, China;
2. CNOOC Tianjin Company, Tianjin 300452, China

Received:2006-02-28 Revised:2006-06-15 Online:2007-01-25 Published:2010-05-21

摘要/Abstract

摘要： 设计了耐高温、高压的模型夹持器,并将该模型夹持器作为外接管线与模型的接口。在普通微观实验模型的基础上,研制了高温、高压微观实验系统,分析了降压过程中气泡动态变化现象、油气分布情况与油气运动规律、不同压力下水驱含气原油的流动现象以及自由气体对油水流动的影响。建立了高温高压宏观实验系统,研究了降压开采过程中油、气产量情况以及不同油藏压力下水驱油的开发效果。实验结果表明:在泡点压力附近,气泡数量少且体积小,析出的自由气体有利于油水流动,水驱波及面积大。在此之前注水,保持油层压力在泡点压力的87%以上,能够实现油田注入水少,综合含水率低,采出程度高。现场生产表明,研究成果是非常有效的。

关键词: 高渗透砂岩油藏, 水驱, 注水时机, 模拟实验, 提高采收率

Abstract: A model holder for high-temperature and high-pressure resistance was designed and taken as a connection between outer pipelines and model. On the basis of the common microcosmic experiment system, a microcosmic experiment system for high-temperature and high-pressure resistance was developed and used to observe the dynamic behavior of bubble point, oil-gas distribution and oil-gas flow performance, and effect of free gas on oil and water flow during pressure declines. The oil-gas flow law during water flooding and crude oil containing gas at different pressure were analyzed. A macroscopic experiment system of high-temperature and high-pressure resistance was developed to analyze oil and gas productivity. The development effectiveness of water-flooding under different pressure was researched. The results showed that there were less gas points, and the gas point bulk was small, while reservoir pressure declined to about point pressure. Free gas is helpful to oil and water flow. Swept area of water-flooding was wider. If water injection is running before reservoir pressure declines to point pressure and reservoir pressure is keeping more than 87% of point pressure, the oilfield development will need less injection of water and get low total water cut and more recovery. The effectiveness of the research results have been proved in practice.

Key words: high-permeability sandstone reservoir, water drive, water-flooding time, simulation experiment, enhanced oil recovery

中图分类号:

TE357.6

李波, 李廷礼, 张迎春. 高渗透砂岩油藏注水时机实验研究[J]. 石油学报, 2007, 28(1): 78-82.

Li Bo, Li Tingli, Zhang Yingchun. Experiment research of water-flooding time in high-permeability sandstone reservoirs[J]. Editorial office of ACTA PETROLEI SINICA, 2007, 28(1): 78-82.

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高渗透砂岩油藏注水时机实验研究

Experiment research of water-flooding time in high-permeability sandstone reservoirs

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